| 摘要 |
[PROBLEMS] To provide a toner for electrostatic charge image development that not only exhibits excellent offset property, excelling in environmental durability but also realizes stable image density. [MEANS FOR SOLVING PROBLEMS] There is provided a toner for electrostatic charge image development, comprising colored resin particles containing a binder resin, a colorant, a charge control agent and a release agent, wherein (1) the colored resin particles have a volume average particle diameter (Dv) of 4 to 9 mum, (2) the colored resin particles have an average circularity of 0.93 to 0.995, (3) the shear viscosity (eta1) at 130˚C and at a shear rate of 10/s thereof is in the range of 3500 to 8000 Pa.s, (4) the shear viscosity (eta2) at 130˚C and at a shear rate of 500/s thereof is in the range of 300 to 1300 Pa.s, (5) the content (A) of components of <= 130˚C evaporation temperature therein is <= 100 ppm, (6) the content (B) of components of > 130˚C but <= 180˚C evaporation temperature therein is <= 100 ppm, (7) the sum of A+B is <= 150 ppm, and (8) the ratio of A/B is <= 1.0. |
